Selling a lot of skins in a bundle is fine, and mount skins are a great cosmetic to offer with good potential for monetization, but COME ON, Anet. There's no need for this kind of pointless randomisation! If the skins are good, players will buy them. Sell the flashier ones for a higher price if you must, and the pallete swaps for less, but the method chosen here is just insulting and clearly designed to prey on people with addictive personalities.